In celebration of 100 exciting years of the Japan Endocrine Society

The first hormone discovered was secretin in 1902.In 1921, insulin was extracted from the pancreas of a dog.Subsequently, over 100 bioactive peptides were characterized, some of which went on to be used in clinical practice.The Japan Endocrine Society (JES) was founded in 1925 and will celebrate its centennial in 2026.This century might therefore be remembered as witnessing the birth and maturity of endocrinology at the global level.The JES has consistently been growing, and in 2023, exceeded 10,000 members.Today, I proudly celebrate the centennial of the JES.To begin, I would like to introduce my research, medical experience, and social activities for the past 45 years.But first, I want to express my sincere appreciation for the invaluable instruction and support that I have received from the JES.